Eyeleting machine



Oct. 11, 1939. e. E. KALMNG 2,176,304

EYELETING MACHINE Filed Aug. 6, 1938 Fig.1

4 Sheets-Sheet 1 JnvenTor Frederick E. Kcllning by W M22620. ATTys.

Oct. 17, 1939.

Filed Au 6, 1938 Fig.2.

4 Sheets-Sheet lnvenTor. Frederick E. Kolning A'rTy s.

Oct. 17, 1939. F. E. KALNING EYELETING MACHINE Filed Aug. 6, 1938 4Sheets-Sheet 3 lnvenron Frederick E.Kulnin b fwlwzf ATTys.

' Oct. 17, 1939. Fl E. KALNING 2,126,304

EYELETING MACHINE Filed Aug. 6, 1938 4 Sheets-Sheet 4 a Patented Oct.17, 1939 UNITED STATES PATENT OFFICE EYELETING MACHINE chusettsApplication August 6, 1938, Serial No. 223,473

5 Claims.

, This invention relates to eyeleting machines and particularly tomachines adapted to insert eyelets in the stick at the bottom of windowshades.

The machine embodying the invention is provided with a punch forpunching a hole through the stick and the hem of the shade in which thestick is located, and then inserting an eyelet into the hole thuspunched and setting the eyelet.

One of the objects of the invention is to provide a novel machineadapted to accomplish these results but which is so constructed that thepunching of the hole for the eyelet and the setting of the eyelet isaccomplished while the shade remains in the same position.

' In the machine herein shown, the punch is situated below the work andis moved upwardly through the stick for punching the hole therein, therebeing a hold-down which has engagement :with the upper face of the stickduring the punching operation. An eyelet-setting implement is employedsituated above the work and adapted to insert the eyelet through thepunched vhole and then to cooperate with an anvil beneath the work forsetting the eyelet.

The punch and the eyelet-setting implement are in axial alignment witheach other, and in order that the anvil may not interfere with theoperation of the punch, I propose to mount the .anvil so that it can bemoved from its operative 'position in alignment with the eyelet-settingimplement to an inoperative position out of such alignment, and meansare provided for moving the anvil into its inoperative position and outof the way of the punch when the latter is op- :erating to punch thehole in the shade stick and to move the anvil back into its operativeposition into alignment with the eyeleting-setting implement after thepunch has been withdrawn so that when the eyelet-setting implement isoperated, the anvil will be positioned to co-act with the eyelet-settingmember to set the eyelet.

In order togive an understanding of the invention I have illustrated inthe drawings some selected embodiments thereof which will now bedescribed after which the novel features will be pointed out in theappended claims.

In the drawings:

Fig. 1 is a vertical sectional view through an apparatus embodying myinvention;

Fig. 2 is a front view thereof with a portion broken out Fig. 3 is a topplan View;

Figs. 4 and 5 are fragmentary views showing the means for moving theanvil and the holddown from their operative to inoperative positions andvice versa;

Fig. 6 is a fragmentary vertical sectional view taken on substantiallythe line 66, Fig. 5, and 5 showing the operation of the punch inpunching the hole through the shade stick, said figure showing the anvilin its inoperative position;

Fig. '7 is a somewhat similar fragmentary sectional View butillustrating the anvil in its op- 10 erative position and showing theoperation of setting the eyelet;

Fig. 8 is a somewhat diagrammatic view illustrating the relativemovement between the eyelet-setting member and hold-down member and 1the anvil;

Fig. 9 is a fragmentary underside view of the arm 35.

The operative parts of the machine are mounted in a suitable frame Iwhich is provided with a work-supporting table or portion 2 on which theend of the shade 3 which carries the usual stick 4 may be received forthe operation of punching a hole in the stick and setting an eyelet 44therein.

formed in a portion 8 of the frame. The punch is shown in Fig. 1 in itsretracted or lowered position and the punch is given an upward movementfor punching the eyelet receiving hole in the stick 4. This punch isshown as receiving its vertical reciprocating movement by means of a cammember 9 mounted on a shaft I0 journaled in the frame, said cam memberhaving a cam groove H in which is received a follower l2 that is carriedby a lever l3 pivoted at one end to the frame I as shown at M and at itsother end is connected by a link Hi to collar or head l6 secured to thelower end of the stem 6. The cam groove II has the high portion H andthe low portion 18 and said cam rotates in the direction of the arrow inFig. 1. As the follower 5 I2 passes from the high portion ll to the lowportion I8 of the cam, the punch will be raised and forced through thestick 4, as shown in Fig. 6, and will be withdrawn into its loweredposition as the follower passes from the low portion 5 to the highportion of the cam.

l9 indicates a hold-down member situated above the work and whichengages the stick 4 to hold the latter from upward movement while thepunch is being forced through the stick. This 5 hold-down member I9 isprovided with a punchreceiving opening 2|] adapted to receive the end ofthe punch (see Fig. 6) as the latter is forced through the stick.

If the stick 4 is a relatively thin one, it may not fill the spacebetween the work support and the hold-down, in which case the stick willhave a slight upward movement as it is engaged by the upwardly movingpunch, such upward movement being limited by the hold-down.

The eyelets 44 are delivered to the stick 4 and are set therein by thecooperation of an eyeletsetting implement 2| operating above the Work,and an anvil 22 situated beneath the Work. The eyelet-setting implementis in the form of a stem or rod having a reduced eyelet-receivingportion 23 at its lower end which is adapted to enter the bore of theeyelet or tubular rivet, said implement 2| being provided with thedownwardly facing shoulder 24 against which the head end of the tubularrivet rests. 25 indicates a spring carried by the eyelet-receivingportion 23 and which provides sufficient frictional engagement with theeyelet to retain the latter thereon.

The eyelets are fed singly from a magazine to the eyelet-settingimplement 2| by means which will be presently described.

The eyelet-setting implement 2| has a vertically reciprocating movement,for placing an eyelet in the punched hole in the stick 4 and settingsaid eyelet. Said eyelet-setting implement 2| is situated in axialalignment with the punch 5 and it is carried by an arm 26 extending froma head 21 that encircles and has vertical sliding movement on avertically extending shaft 28 which is journaled in the frame. Theeyeletsetting implement 2| is given its vertically reciprocatingmovement by means of the same cam groove II as that which gives movementto the punch .5. The head 27 has a link 29 pivotally connected theretoat 30 and the lower end of said link is pivotally connected at 3| to alever 32 that is pivoted to the frame at 33. This lever 32 has afollower 34 which is received in the cam groove II, and as the follower34 passes from the high portion ll to the low portion N3 of the camgroove, said eyelet-setting implement 2| will be moved from its raisedposition into its lowered or eyelet-setting position shown in Fig. '7.

In the present invention the shade and its stick 4 remain stationaryduring the entire time that the hole is punched in the stick and theeyelet is set in the hole, and to provide for this, the anvil 22 and thehold-down H! are mounted so that they can be moved into and out ofoperative position.

For instance, when the punch 5 is operating to punch the hole in thestick 4, the hold-down I9 is in its operative position in which itspunch receiving-opening 20 is in alinement with the punch. At this time,the anvil is in its inoperative position out of the path of movement ofthe punch.

When the eyelet is to be set the anvil is moved into operative positionin axial alinement with the eyelet-setting implement 2| and the holddownI9 is moved out of operative position and out of the path of downwardmovement of the eyelet-setting member 2 The anvil 22 is shown as mountedon an arm 35 of a rocker 36, the latter having a hub portion 3i which ismounted for turning or rocking move ment in the portion 38-of the frame.The holddown I9 is carried by another arm 39 which is rigid with the hub31 at its upper end. Said arms 35 and 39 and hub 31 thus constitute aunitary rocking element which carries both the anvil 22 and thehold-down l9.

The relative position of the hold-down I9 and anvil 22 is such that whenthe hold-down with its punch-receiving opening 29 is in axial alinementwith the punch, the anvil will be out of the path of movement of thepunch and will be in its inoperative position. A slight turning movementof the rocker will swing the hold-down |9 into its inoperative positionout of the path of movement of the descending eyelet-setting implement2| and will bring the anvil into operative position in axial alinementwith said implement as shown in Fig. 7. For rocking the rocker, the cammember 9 is provided on its periphery with a cam groove 49 in which isreceived a follower 4| depending from the end of the rocker 36. This camgroove 49 is shaped to give the rocker 36 its rocking movement in propertimed relation with the operations of the punch and the eyeletsettingimplement 2|. The operation of punching the hole and setting the eyelettherein may be briefly summarized as follows:

The shaft I is preferably operated by a one revolution clutch (presentlyto be described) which brings the parts to rest after each oper-- ationin the position shown in Figs. 1 and 2, with the punch in its loweredposition and with the eyelet-setting implement 2| in its elevatedposition.

At this time also the rocker 35 is positioned so that thepunch-receiving opening 29 is in alinement with the punch and the anvil22 is out of the path of movement of the punch.

The operator then places the stick end of the shade 3. on the worksupport and positions it against the gauge member 42. The machine isthen started and as the cam 9 rotates clockwise,

Fig. 1, the follower |2 will be carried from the high portion I! to thelow portion |8 of the cam thus raising the punch into the position shownin Fig. 6, and punching the hole through the stick 4 and shade, the endof the punch entering the aperture 29 as it emerges from the stick. Thearm 35 of the rocker which carries the anvil 22 is provided with anopening 43 of a size to receive the stem 6 of the punch and when therocker is in the position shown in Figs. 1 and 4, said opening 43 is inalinement with the guiding opening 1 in the frame so that the stem 6 ofthe punch will pass into the opening 43 as the hole is being punched inthe stick.

When the cam 9 has made approximately a. one-half revolution, the punchwill have been returned to its lowered position and the cam groove IIwill have been brought into such a position that the follower 34 isabout to pass into the eccentric portion of the cam groove.

At this time an eyelet has been supplied to the eyelet-receiving portion23 of the eyelet-setting member 2|, as will be presently described, andthe rocker 36 has been turned to carry the holddown I9 out of the pathof movement of the eyelet-setting member 2| and to bring the anvil 22into axial alinement with said implement. As the eyelet-setting memberdescends, it carries the eyelet 44 into the punched hole and during thefinal downward movement of the implement 2| said implement co-acts withthe anvil to set the eyelet as shown in Fig. 7.

As the cam 9 completes its revolution, the eyelet-setting implement 2|is raised into its initial position shown in Fig. 1. Theeyelet-receiving portion 23 of the eyelet-setting member 2| is in mallyprojects beyond the member 2|. This plunger 23 is acted on by a spring91 which normally tends to project it outwardly and its spring impelledmovement is limited by the engagement 98 of the plunger with the end ofa sleeve 99 which is screw-threaded into the lower end of the member 2I, said sleeve having the eyeletsetting face 24 thereon. The plunger 23is of sufiicient length to project through a short eyelet and during theeyelet-setting operation, the end of the plunger will engage the uppersurface of the anvil and the plunger will thereby be retracted as shownin Fig. '7 as the lower end of the eyelet is flanged outwardly by theanvil. By means of this construction it is possible to use the'devicefor setting eyelets of various lengths. The eyelets 44 are deliveredsingly to the eyeletsetting implement 2| from a magazine 45 which mayhave any suitable or usual construction.

This magazine is provided with a delivery chute 46 having a slot in itsbottom through which the stems of the eyelets 44 depend. Situated withinthe magazine 45 is an oscillatory brush element 41 of usual type bywhich the eyelets in the magazine are agitated and which causes them tobe delivered into the delivery chute 46 with their stems dependingthrough the slot in the bottom of the chute.

The chute 46 is provided at its end with a discharge opening 48 throughwhich the eyelets 44 are delivered singly and the magazine and its chuteare mounted for vibrating movement so that the discharge opening 48 isperiodically brought into a position to present an eyelet 44 to theeyelet-setting implement and then is retracted. 96 indicates a springarm which is secured to the chute 46 and which acts as a retainertoretain the end eyelet in the chute. When the chute 4 6 is retractedafter the end eyelet has been picked up by the plunger 23, the springarm 96 will yield to allow the eyelet to be carried out from the end ofthe chute, and after said end eyelet has thus been discharged, thespring arm returns to its normal position to retain the other eyelets inthe chute. The magazine is mounted on the upper end of an oscillatingshaft 49 that is journaled in the frame, said magazine having anextension in the form of a hub into which the upper end of the shaft 49extends, said hub I! being made fast to the shaft. This hub rests on aboss I02 with which the frame I is provided. The lower end of the shaft49 has an arm 50 rigid therewith which is connected by the link to thearm 35 of the rocker 36 so that the magazine and its delivery chute 46have an oscillating .movement synchronously with the rocking movement ofthe rocker 36.

It will be noted from Fig. 1 that the cam groove H is so shaped that oneof the eccentric portions connecting the high portion IT with the lowportion la is a stepped portion, that is, said cam groove is formed withthe short abrupt step portion |5| and with a short portion 52 concentricwith the shaft I0 and then a gradual eccentrically curved portion 53which leads to the low portion 8.

This two-step portion of the cam groove performs no function so far asthe operation of the punch 5 is concerned, but when the cam 9 has beenturned into a position in which the follower 34 has the same position inthe cam groove that the follower |2 has shown in Fig. l, the rocker 36and the discharge chute 4'5 will be in the position shown in Fig. 5 inwhich position the discharge opening 48 of the chute is in alinementwith the eyeletsetting implement and the end eyelet will be alined withthe said implement. As the follower 34 moves through the short curvedportion |5| of the cam groove. the eyelet-setting implement 2| will begiven a slight downward movement which will cause the plunger 23 toenter the end eyelet 44 in the chute 46. As the follower 34 is movingover the concentric portion 52, the cam groove 40 shifts the position ofthe rocker 36 and the magazine and its chute 46 into the position shownin Fig. 4, and during this movement, the end eyelet, which is now heldon the plunger 23 is carried out of the discharge opening 48, the spring96 yielding to permit the end eyelet to pass. The friction of the spring25 against the interior wall of the eyelet retains it on the plungeruntil said eyelet is set.

The movement of the rocker 36 from the position shown in Fig. 5 to thatshown in Fig. 4, or from the position shown in Fig. 6 to that shown inFig. 7, will bring the anvil 22 into alinement with the eyelet-settingimplement 2| and as the cam 9 continues to rotate and as the follower 34travels down the eccentric portion 53 of the cam groove, saideyelet-setting implement 2| will be i The cam shaft |0 may be operatedfrom any '1 suitable source. There is shown herein a motor 56 whichoperates a shaft 5'! having a worm 58 thereon meshing with a worm gear59 on the shaft ID.

The one-revolution clutch comprises a hub 60 fixed on the shaft Ill andprovided with a plurality of radial clutch projections 6|. The cam 9,which is loose on the shaft l9, has a clutch dog 62 pivoted to one sideface thereof at 63. This clutch dog 62 is acted on by a spring 64 whichtends normally to turn the clutch dog 62 in a direction to bring the end65 thereof into the path of movement of the clutch pins 6|.

When the clutch is disengaged, the clutch dog is held in its inoperativeposition by a clutch controlling pin 94 which is acted on by a spring 95tending normally to hold it in its dog engaging position.

To cause engagement of the clutch, the clutch controlling pin 94 ismoved to the right, Fig. 2, thereby withdrawing the inner end fromengagement with the clutch dog 62, and as soon as this occurs, thespring 64 swings the clutch dog into position to be engaged by one ofthe clutch pins 6| thereby causing the cam 9 to be rotated with theshaft I0.

When the clutch controlling pin 94 is released, it returns to itsoperative position shown in Figs. 1 and 2 and when it is in thisposition, the cam face 66 of the clutch dog 62 will be brought intoengagement therewith during the rotary movement of the cam 9. As the camsurface 66 moves over the clutch controlling pin 94 during furtherrotation of the cam, the clutch dog will be swung backwardly about itspivot 63 out of engagement with the clutch pin 6|, thereby disconnectingthe clutch. The clutch dog 62 is provided with the hook-shaped stopportion '61 which engages the pin 94 as the clutch dog is disengagedfrom the clutch pin 6|, thereby bringing the cam and the driven parts ofthe machine to rest in a pre-determined position.

The clutch controlling pin 94 can be Withdrawn by hand, it having afinger piece 68 extending beyond the frame I so that it can be readilygrasped, or said clutch controlling pin may be withdrawn to causeengagement of the clutch by means of a suitable treadle.

For this purpose, there is provided a rock shaft 59 journaled in abracket "iii of the frame and having an arm ll connected by a link 12 toa suitable treadle. This rock shaft also has another arm 13 carrying atits upper end a dog 14 having a screw projection 15 adapted to engage aflange l6 with which the stop pin 94 is provided. When the treadle isdepressed and the arms H, 73 are turned clockwise in Fig. 2, theengagement of the screw projection 5 with the flange 15 will causewithdrawal of the clutch pin 94 and will thus throw the clutch intoengagement.

Continued depression of the treadle will cause the screw projection 15to wipe by the flange 16 thus allowing the clutch pin 9 to be returnedto its operative position by its spring 95 ready to disengage the clutchas the cam completes its revolution.

The dog Hi is pivoted to the arm 13 as shown at 71, said dog having anose l8 adapted to engage a stop surface '19 on the arm wherebycounterclockwise turning movement of the dog on its pivot is prevented.80 is a spring acting on the dog and tending normally to hold it in theposition shown in Figs. 1 and 2. However, when the treadle is releasedand the arms ll, 13, return to their normal position shown in Fig. 2,the engagement of the stop pin i5 with the outside face of the flange itwill turn the dog 74 against the action of the spring 80 and will allowsaid dog to wipe by the flange l6 and thus assume its operation positionshown in Fig. 2.

The back stop 42 is carried on the end of a rod 82 which extends to andthrough the back side of the frame (see Fig. 1). The outer end of therod has fast thereto a. screw-threaded sleeve 83 which hasscrew-threaded engagement with the frame. The purpose of thisscrewthreaded. sleeve 83 is to provide for adjustment of the back stop42 toward and from the front of the machine to accommodate sticks ofdifferent widths. The sleeve 83 is provided with a thumb piece 84 bywhich it may be turned.

The brush 4?! in the magazine 45 is carried by a rock shaft 85 having anarm 86 fast thereto. This arm is connected by a link 81 to an eccentricpin 88 on a cap member 89 that is fast on the outer end of the shaftii]. The rotation of the shaft it] thus operates to oscillate the brush.

It will be noted from Figs. 1 and 7 that the punch 5 is not entirelywithdrawn from the arm 35 when said punch is at its lowest position, andin order to provide for the shifting movement of the arm to bring theanvil from the full line position to the dotted line position, Fig. 8,said arm is formed on its underside with a channel 99 which faces andconnects with the opening 43. When the arm 35 is swung from the positionshown in Fig. 5 to that shown in Fig. 4, the upper end of the punch 5enters and occupies said channel 99.

While I have illustrated herein a selected embodiment of the invention,I do not wish to be limited to the constructional features shown.

I claim:

1.An eyeleting machine having work-supporting means, a vertically movingpunch beneath the work-supporting means, a vertically movingeyelet-setting implement above the work-supporting means and situated inalinement with the punch, means to actuate the punch and theeyelet-setting implement sequentially, an anvil beneath thework-supporting means cooperating with the eyelet-setting implement toset the eyelet, and means to move said anvil into an inoperativeposition out of the path of the punch when the latter is actuated, andback into operative position for cooperation with the eyelet-settingimplement when the latter is actuated.

2. An eyeleting machine comprising work-supporting means, a verticallymoving punch beneath the work-supporting means, a vertically movingeyelet-setting implement above the work, said punch and eyelet-settingimplement being axially alined, means for actuating the punch andeyelet-setting implement sequentially, a hold-down above the work havingan opening to receive the punch as it is formed through the work, ananvil below the work cooperating with the eyelet-setting implement toset the eyelet,-

and means to move the anvil into inoperative position out of the path ofthe punch and the hold-down into operative position'to receive the punchwhen the latter is actuated and to move the anvil into operativeposition to cooperate with the eyelet-setting implement and the holddowninto an inoperative position out of the path of movement of theeyelet-setting implement when the latter is actuated to set the eyelet.

3. An eyeleting machine comprising work-supporting means, a verticallymoving punch beneath the work supporting means, means to actuate thepunch to punch a hole through the work, an eyelet-setting implementabove the work situated in axial alinement with said punch, means todeliver eyelets singly to said implement, an anvil member beneath thework movable from an operative position in alinement with theeyelet-setting implement to inoperative position out of the path ofmovement of the punch and means to move the anvil into its in operativeposition when the punch is being actuated and into its operativeposition when the eyelet-setting implement is being actuated.

4. An eyeleting machine comprising work-supporting means, a verticallymoving punch beneath the work-supporting means, means to actuate thepunch to punch a hole through the work, a hold-down above the workhaving an aperture to receive the punchas it passes through the work,said hold-down being mounted for movement from an operative position inalinement with the punch to an inoperative position out of suchalinement, an eyelet-setting implement above the work situated in axialalinement with the punch, means to deliver eyelets singly to saideyelet-setting implement, an anvil member beneath the work movable fromoperative position in alinement with the punch to an inoperativeposition out of alinement therewith, and means to move the anvil intoits inoperative position and the hold-down into its operative positionwhen the punch is being actuated, and to move the anvil into itsoperative position and the hold-down into its inoperative position whenthe eyelet-setting implement is being actuated.

5. An eyeleting machine comprising work-supporting means, a verticallymoving punch beneath the work-supporting means, a vertically movingeyelet-setting implement above the worksupporting means, means forpresenting eyelets singly to the eyelet-setting implement, means to givesaid implement an initial downward movement sufficient to receive aneyelet from said eyelet-presentingmeans and then a final downwardmovement to place the eyelet in the punched hole, an anvil cooperatingwith the eyelet-setting implement to set the eyelet, said anvil beingmovable from an inoperative position out of alinement with theeyelet-setting implement into an operative position in alinement withsaid implement and means to move the anvil into its inoperative positionwhen the punch is being actuated, and into its operative position whenthe eyelet-setting implement is given its initial movement.

FREDERICK E. KALNING.

